Coaster



Oct. 4, 1938. A. 1.. LAWRENCE 'COASTER Filed Feb. 23, 1957 @mwwzw Patented Oct. 4, 1938 UNITED STATES PATENT OFFICE" Arthur L. Lawrence, Newton, Mass. Application February 23, 1937, Serial No. 127,130

8 Claims. (oi. 85-53) My invention relates to improvements in coasters adapted for use as pads for the bases of drinking glasses, pitchers, jugs or other containers of liquids which will moisture rings or drops on supporting surfaces.

An object of my invention is to provide a coaster, simply constructed of relatively inexpensive materials which may be produced at low cost and in which the cost is so low that when dirtied or consumed, it may be thrown away and a new one provided for each occasion. To provide means to absorb moisture from the base of the glass, I provide a pad of moisture absorbing l5 material such as blotting paper provided with a central hole therein, preferably of square or circular formation and I provide underneath it a layer of non-drying adhesive coated paper so as to have a portion thereof extending underneath 0 the hole of the annulus and formed or provided table tops or other with slits therein preferably diametrical or diagonal perpendicular slits dividing said adhesive portion into quarter or triangular portions each capable of being bent upwards through the square, round or other hole, each individually to engage the base of the drinking glass or other container to adhesively secure the coaster thereto. It is obvious that even if the base of the glass be domed as is common in most drinking glasses on the market, that on pressure being'applied upwardly through the hole, these slitted portions may be readily pushed upwardly to individually adhere to a flat or domed base of the drinking glass or like container.

A further object of my invention is to provide a coaster which may be simply adhered to the base of the drinking glass or other container to remain adhered thereto in use throughout a rela-' tively long period of time.

While I have found in usethat the pad absorbs all of the condensed moisture which has run down to the base, as the glass is. being tipped in use, drops of moisture may additionally tend to run down the, outer wall of the glass and drip over the user. For this purpose I preferably provide a supplementalannulus of stiff material secured to said adhesive layer below said pad and extending integrally radially beyond said pad and terminating in an upwardly extending edge to thus catch the condensed liquid and prevent it from spilling or dropping on the user as he tips his glass.

' If desired the moisture tend radially beyond the absorbing pad may exlower end of the glass to receive printed advertising matter thereon or prevent the leaving of of approximately a size the layer of stiff material may be so extended for this purpose. These and such other objects of my invention as may hereinafter appear will be best understood from a description of the accompanying drawing which illustrates various embodiments thereof.

In the drawing, Fig. 1 is a perspective view of a coaster constructed in accordance with my invention.

Fig. 2 is a sectional view of the coaster shown in Fig. 1 attached to the dome shaped baseof a drinking glass.

Fig. 3 is a perspective view of a simpler embodiment of my invention.

Fig. 4 is a sectional view showing the embodiment of my invention shown in Fig. 3 attached to the base of a drinking glass having a flat base.

Fig. 5 is a reverse plan view of the embodiment of my invention shown in Fig. 3.

Fig. 6 is a plan view of a modification of the preferred embodiment of my invention shown in Figs. 3-5 having a square hole with diagonal slits therein.

Fig. '7 is a reverse plan view of the embodiment shown in Fig. 6.

In the drawing, wherein like characters of reference generally indicate like parts throughout, ill indicates a coaster constructed in accordance with my invention. In any embodiment of my invention, said coaster Ill includes a pad i2 of moisture absorbing material such as blotting paper, absorbent paper, absorbent fibre or fabric shaped to the approximate configuration of the base it of a drinking glass it or other container g to extend beyond the outer edge it of the base M of the glass, and having a hole 20 in my first embodiment the circular hole 20 centrally of said pad i2. 1 then afiix alayer of adhesive coated fabric to said p'ad i2 so as to extend substantially entirely underneath the hole 20 therein. While any suitable type of an adhesive fabric may be employed, I preferably employ paper and coat it with a nondrying adhesive substance; preferably of the type called pressure adhesive in the trade, such as a non-drying glue base, rubber base or cellulose base adhesive, such as shown in Reissue Patent 19,128, reissued April 3, 1934 to R. G..Drew, or otherwise as to provide an adhesive surface which will, at all times, stick to the bottom of the container. Said adhesive fabric layer 22 may be in the form of a disc approximately the size 'of the 'pad i2 as in the embodiment shown in-Figs. 1

Figs. 3 and 4, comprise the layers of tape 22' crossed at right angles to each other, to substantially underlie the hole 20', or it may, as shown in Figs. 6 and 7 comprise the singlelayer of tape 22" completely covering the lower surface of the pad i2". While the portion 24 of said adhesive layer 22 underlying said hole 20 may be so extensible upwards to abut the base I 4 of the container or drinking glass l6 and be adhered thereto on such pressure, in order that said portion 24 may be more readily attached to the bases of all types of drinking glasses, I preferably provide it with the slits 26 at right angles to each other, pre1'-' erably diametrical perpendicular slits dividing said circular portion 24 into quarter circular portions 28 capable of being bent upwards through said hole 20 to individually engage the base of the drinking glass or container, and as shown in Fig. 2, if the base H of the container It be circularly domed, said quarter circular portions 28 will separate from each other as shown at 30 as they are pressed upwards as will the triangular portions 28" from the square hole 20" as shown in Figs. 6 and 7.

In the embodiment of my invention shown in Figs. 1 and 2, I have provided a supplemental layer 32 of stiff material having a substantially similar hole 34 therein and thus being an annulus 32 of substantially the size of the annulus l2 secured to the bottom of said adhesive layer 22 and hence to said upper annular pad l2 and extending integrally radially beyond said annular pad l2 and terminating in an upwardly extending edge 36 preferably having the end thereof rolled over into the annular bead 38. Said supplemental layer 32 may be constructed of cardboard, pressed board or any other suitable material. A function of the upwardly extending edge 36 thereof is to catch condensed drops of liquid and prevent them from spilling on the user's clothes wheh tipping the glass as in the act of lifting the container for a drink and tipping it towards his mout If desired the outer edge of the pad I!" be radially extended as shown at iii in Figs. 6 and 7 and have the advertising printed matter l5- thereon or if the supplemental layer 32 be employed it may be similarly extended and similarly provided with printed matter.

My improved coaster I0 is preferably applied to the glass or other container before it is filled although it may be desirable to apply the con tainer after it is filled. To apply, it is merely necessary to press upwards on the central portion of the adhesive fabric below the hole 20 against the middle of the base of the container, the slits 26 permitting the portions 28 to spread for this purpose as shown in Fig. 4. The feature of providing slits is highly desirable when a glass or other container it having a-centrally domed base H as shown in Fig. 2 be employed and as I preferably employ a nondrying pressure adhesive, it is apparent that my improved coaster, when thus applied, will tend tostick to the base of the container throughout-a long period of use. It is obvious that the edge I! of said annulus l2 extending beyond the outer wall of the glass or container IE will tend to catch or absorb any. liquid, from whatever cause, from running down the exterior surface of the container. It is apparent that when the use of the coaster is no longer desired, it maybe readily pulled from the base of the. container, leaving no mark thereon.

as to be capable of being pressed -wardly extending edge to catch may have in an embodiment shown in Figs. 1 and 2 provided a supplemental reservoir for catching all drops of liquid tending to fall from the wall of the container in use to prevent them from dropping on the user.

It is understood that my invention is not limited to the specific embodiments shown and that various deviations may be made therefrom without departing from the spirit and scope of the appended claims.

What I claim is:

1. A coaster, comprising an annulus of blotting paper, a layer of non-dryable adhesive fabric secured to the lower surface thereof, having 'the circular center portion thereof extending below the hole of said annulus, having diametric perpendicular slits therein dividing said circular portion into quarter circular portions capable of being bent upwards through said hole to individually engage the base of a drinking glass or container to adhesively secure said coaster thereto and a supplemental annular layer of cardboard secured to said adhesive layer below said upper annulus and extending integrally radially beyond said annulus and terminating in an upcondensed liquid and prevent it from spilling on tipping said glass.

2. A coaster, comprising an annulus of blotting paper and a layer of non-dryable adhesive fabric secured to the lower surface thereof, having the circular portion thereof extending below the hole of said annulus, having slits therein dividing said portion into quarter circular portions capable of being bent upwards through said hole to individually engage the base of a drinking glass or container to adhesively secure said coaster thereto.

3. A coaster, comprising a pad of moisture ab sorbent material of greater area than the base of a drinking glass or other container and having a square hole therein, a layer of adhesive fabric secured to the lower surface thereof, having the portion thereof extending below the hole, having slits therein diagonal of'said square hole dividing said portion into'trianguiar portions capable of being bent upwards through said hole to individually engage the base of a drinking glass or container to adhesively secure said coaster thereto, and a supplemental layer of stiff material having a substantially square similar hole therein secured to said adhesive layer below'said pad and extending integrally radially beyond said pad and terminating in an upwardly extending edge to catch condensed liquid and prevent it from spilling on tipping said glass.

4. A coaster, comprising a pad of moisture absorbent material of greater area than the base of a drinking glass or other container and having a hole therein,'a layer of adhesive fabric secured to the lower surface thereof, having the portion thereof extending below the hole, having slits therein dividing said portion into portio'ns capable of being bent upwards through said hole to individually engage the base of a drinking glass or container to adhesively secure said coaster thereto, and a supplemental layer of still material having a substantially similar hole therein secured to said adhesive layer below said pad and extending integrally radially beyond said pad and terminating in an upwardly extending a drinking glass or other container and having'a squarehole therein and a layer of adhesive fabric secured to the lower surface thereof, having the portion thereof extending below saicl hole, having slits therein diagonal of said square hole dividing said portion into triangular portions individually capable of being bent upwards through said hole to engage the base of a drinking glass or container to adhesively secure said coaster thereto.

6. A coaster, comprising a pad of moisture absorbent material of greater area than the base of a drinking glass or other container and having a hole therein, and'a layer of adhesive fabric secured to the lower surface thereof, having the portion thereof extending below said hole, having slits therein dividing said portion into por tions individually capable of being bent upwards through said hole to engage the base of a driniring glass or container to adhesively secure said coaster thereto.

7. A coaster, comprising a pad of moisture absorbent material of greater area than the base of a drinking glass or other container and having a hole therein, and a layer of adhesive fabric secured to the lower surface thereof, comprising two strips of non-drying adhesive tape arranged at angles to each other across and substantially filling said hole, having the portion thereof extending below said hole, having slits therein dividing said portion into portions capable of being bent upwards through said hole to individually engage the base of a drinking glass or container to adhesively secure said coaster thereto.

8. A coaster, comprising an annulus of blotting paper, a layer of non-dryable adhesive fabric secured to the lower surface thereof, having the circular portion thereof extending bjelow the hole of said annulus, capable of being 'bent upwards through said hole to engage the base of a drinking glass or'container to adhesively secure said coaster thereto, and a supplemental annular layer of cardboard secured to said adhesive layer below said upper annulus and extending integrally radially beyond said annulus and terminating in an upwardly extending edge to catch condensed liquid and prevent it from spilling on tipping said glass.

. ARTHUR L. LAWRENCE. 

